Jasper
Silicon dioxide (SiO2)
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Jasper
Silicon dioxide (SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (SiO2 primarily)
Hematite
Iron(III) oxide (Fe2O3)
Bauxite
Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))
Petrified Wood
Silicified Wood (primarily SiO2)
Chalcedony
Silicon Dioxide (SiO2)
Green Jasper
Silicon Dioxide (SiO2) with impurities
Potassium Feldspar
Orthoclase (KAlSi3O8)
Pyrite in Matrix (Fool's Gold)
Iron Disulfide (FeS2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Orange Calcite
Calcium Carbonate (CaCO3)
Clear Quartz
Silicon dioxide (SiO2)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Quartz / Clear Quartz
Silicon Dioxide (SiO2)
Rhodochrosite
Manganese Carbonate (MnCO3)
Quartz (Milky/Gray variety)
Silicon Dioxide (SiO2)
Rhodochrosite
Manganese Carbonate (MnCO3)
Chert (Jasper)
Microcrystalline Quartz (SiO2) with Iron Oxide inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Variety: Citrine or Tumbled Chalcedony)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Shale
Argillaceous Rock
Rhodochrosite
Manganese Carbonate (MnCO3)
Shale
Fissile mudstone (Shale)
Shale
Shale (comprised mostly of clay minerals and quartz)
Sandstone (with minor quartz and possible clay components)
Clastic Sedimentary Rock (SiO2 dominated)
Fluorite
Calcium Fluoride (CaF2)
Hematite (Oolitic or Earthy variety)
Iron(III) oxide (Fe2O3)
Sandstone (likely Arkose)
Arenite (Feldspathic Sandstone / Arkose)
Sandstone (Yellow/Siltstone variant)
Arenite (SiO2 primarily)
Bituminous Coal
Bituminous coal (Carbonaceous sedimentary rock)
Blue Calcite
Calcium Carbonate (CaCO3)
Marble (White)
Metamorphosed Limestone (mainly CaCO3)
Fluorite
Calcium fluoride (CaF2)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions